Files
allwpilib/wpilibc/Athena/src/AnalogPotentiometer.cpp
Tyler Veness 3cd1253977 artf2612: Update license in source files.
Years update, references to WIND_BASE were removed, and WPILib license was
moved to the root directory of the project.

If there was already a comment block, a year range through 2016 was created
using the first year in the comment. If there was no comment block, a block
with just the year 2016 was added.

Comments were not added to files from external sources (NI, CTRE).

Change-Id: Iff4f098ab908b90b8d929902dea903de2f596acc
2016-01-05 00:35:05 -08:00

95 lines
3.3 KiB
C++

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2016. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
/*----------------------------------------------------------------------------*/
#include "AnalogPotentiometer.h"
#include "ControllerPower.h"
/**
* Construct an Analog Potentiometer object from a channel number.
* @param channel The channel number on the roboRIO to represent. 0-3 are
* on-board 4-7 are on the MXP port.
* @param fullRange The angular value (in desired units) representing the full
* 0-5V range of the input.
* @param offset The angular value (in desired units) representing the angular
* output at 0V.
*/
AnalogPotentiometer::AnalogPotentiometer(int channel, double fullRange,
double offset)
: m_analog_input(std::make_unique<AnalogInput>(channel)),
m_fullRange(fullRange),
m_offset(offset) {}
/**
* Construct an Analog Potentiometer object from an existing Analog Input
* pointer.
* @param channel The existing Analog Input pointer
* @param fullRange The angular value (in desired units) representing the full
* 0-5V range of the input.
* @param offset The angular value (in desired units) representing the angular
* output at 0V.
*/
AnalogPotentiometer::AnalogPotentiometer(AnalogInput *input, double fullRange,
double offset)
: m_analog_input(input, NullDeleter<AnalogInput>()),
m_fullRange(fullRange),
m_offset(offset) {}
/**
* Construct an Analog Potentiometer object from an existing Analog Input
* pointer.
* @param channel The existing Analog Input pointer
* @param fullRange The angular value (in desired units) representing the full
* 0-5V range of the input.
* @param offset The angular value (in desired units) representing the angular
* output at 0V.
*/
AnalogPotentiometer::AnalogPotentiometer(std::shared_ptr<AnalogInput> input,
double fullRange, double offset)
: m_analog_input(input), m_fullRange(fullRange), m_offset(offset) {}
/**
* Get the current reading of the potentiometer.
*
* @return The current position of the potentiometer (in the units used for
* fullRaneg and offset).
*/
double AnalogPotentiometer::Get() const {
return (m_analog_input->GetVoltage() / ControllerPower::GetVoltage5V()) *
m_fullRange +
m_offset;
}
/**
* Implement the PIDSource interface.
*
* @return The current reading.
*/
double AnalogPotentiometer::PIDGet() { return Get(); }
/**
* @return the Smart Dashboard Type
*/
std::string AnalogPotentiometer::GetSmartDashboardType() const {
return "Analog Input";
}
/**
* Live Window code, only does anything if live window is activated.
*/
void AnalogPotentiometer::InitTable(std::shared_ptr<ITable> subtable) {
m_table = subtable;
UpdateTable();
}
void AnalogPotentiometer::UpdateTable() {
if (m_table != nullptr) {
m_table->PutNumber("Value", Get());
}
}
std::shared_ptr<ITable> AnalogPotentiometer::GetTable() const { return m_table; }